19 October 2008, Sánchez scored his first league goal against Lecce. After this first goal, Sánchez got into a minor slump, in which he took much criticism. The criticism ended after scoring the winning goal in the 90th minute against Bologna in a 1–0 win, being named the man of match. The next season, Sánchez played an important role for Udinese in the Coppa Italia, being a key player in the team that eliminated Milan, assisting Gökhan Inler for the winning goal. In the semi-final second leg, Sánchez was the man of match after playing a successful game against Roma, including scoring his first Coppa Italia goal in the 81st minute. It was not enough, however, as the aggregate score finished 2–1 in favour of Roma. By the end of this year, Sánchez scored a total of 5 goals (4 at the end of tournament) in 32 appearances. On 27 February 2011, Sánchez scored four of his team's seven goals as Udinese comfortably defeated Palermo 7–0, playing only the first 52 minutes of the game. This event meant he broke the record of goals scored by a Chilean player (in a single match) in Serie A, beating the records set by countrymen Marcelo Salas and Iván Zamorano. During his successful season at Udinese, Sánchez and Italian striker Antonio Di Natale became one of the best scoring duos in Serie A; they tallied 39 goals between them, two goals short of the Alessandro Del Piero–David Trezeguet duo that completed 41 goals in the 2007–08 season. In recognition of his achievements, Sánchez was named the world's most promising youngster of the 2011 season by the users of FIFA.com, where users had to choose between Sánchez, Gareth Bale, Javier Pastore, Ganso and Neymar in a poll. Sánchez ranked 56th in the May 2011 edition of Castrol Performance Index and 24th among the forwards. Barcelona On 20 July 2011, Barcelona confirmed they had agreed to a €26 million fee (including €11.5 million in certain bonuses) with Udinese for the transfer of Sánchez and he became the first Chilean to play for the club. "Sánchez is very young," said then-manager Pep Guardiola; "He can play in all three attacking positions, he shows intense defensive skills, he's direct and from what I've been told, he's a very nice kid." The transfer was finalised five days later when he passed a medical and signed a five-year contract.